Hi,
On Sat, 2023-08-26 at 12:51 +0200, John Paul Adrian Glaubitz wrote:
The Debian m68k maintainers proposed building their packages with -malign-int
last year, aligning to 32-bit instead of 16-bit, which improves compatibility
with some projects and should give better performance on 68020+, at the cost
of slightly increased memory usage. The mold linker is at least one project
that has been shown to work after making this change where it previously
didn't.
Not only mold but also most notably the following projects:
- LLVM
- Firebird Database
- OpenJDK
- Various Qt packages
We can now add CPython to this list as 3.13 requires 32-bit alignment [1]:
In file included from ../Include/internal/pycore_backoff.h:12,
from ../Include/internal/pycore_code.h:474,
from ../Include/internal/pycore_interp.h:16,
from ../Include/internal/pycore_runtime.h:17,
from ../Include/internal/pycore_pystate.h:12,
from ../Include/internal/pycore_critical_section.h:9,
from ../Python/critical_section.c:4:
../Python/critical_section.c:6:1: error: static assertion failed: "critical section must be aligned to at least 4 bytes"
6 | static_assert(_Alignof(_PyCriticalSection) >= 4,
| ^~~~~~~~~~~~~
We should really make the switch now. It's certainly not getting better.
Adrian
[1] https://buildd.debian.org/status/fetch.php?pkg=python3.13&arch=m68k&ver=3.13.0%7Eb1-2&stamp=1715773703&raw=0
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer
`. `' Physicist
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